Add Listing
    For Sale
    • For Sale
    • For Lease
    • Recently Sold
    • Property Lookup
    • Brokers
    AI Search
    The Largest CRE Database in the US with Over 1 Million Listings

    20 Ladd St, Unit K Portsmouth, NH 03801

    View on Map
    Loading data...
    Loading data...
    Loading data...
    For Sale
    $2,300,000

    4,600 sqft Portsmouth commercial condo with residential conversion potential.

    Lot size:
    0.11 Acres

    Property Features for 20 Ladd St

    General Information

    Property type
    Commercial
    Standard status
    Active
    Lot size
    0.11 Acres

    Building Details

    Year built
    1860

    We can help!

    Listing Contact
    Meaghan Defreze
    Source: Elliman

    Listing Agent: Meaghan Defreze

    Displayed information is deemed reliable but is not guaranteed and should be independently verified.

    Learn more

    Overview

    Luxury Commercial Condo in Portsmouth

    Located in downtown Portsmouth, this 4,600± sq.ft. third-floor commercial condominium offers a premier location with potential for residential conversion. Situated between Market St. and Congress St., the historic 1860 building has been renovated, blending architectural character with modern comfort and functionality. The property provides direct access to Market St., placing it near downtown activity. The bright, flexible open layout includes nine private offices, two conference rooms, a reception area, and three bathrooms, with direct elevator access. The space is surrounded by windows. A professional-grade kitchen features commercial stainless steel appliances, a hood system, and refrigeration. The property is located near the municipal parking garage and Portsmouth’s downtown area, known for restaurants, cafés, boutiques, galleries, and the waterfront.
    Location Intelligence

    Current Use by Public Records

    Constance Johannessen Physician Sarah Smaha, LICSW Foster Care Service Norris C Lisa Physician Dr.Robert Prescott Medical Clinic Harbor IP Services, ... Law Firm

    Suggested Use

    Real Estate Agency Law Firm Restaurant Spa & Massage Center Dental Office Hair Salon Nail Salon Building Supply Daycare Center Accounting Firm

    Zoning and permitted uses should be independently verified with local authorities.

    Location Insight

    • Map
    • Local Demand
    City
    Portsmouth
    County
    Strafford
    State
    New Hampshire
    Longitude
    -70.7582
    Latitude
    43.077427

    Nearby Similar for Sale

    • $575,000
      1,470 SF

      Versatile Office Building on Woodbury Avenue

      1,470 SF office building in high-traffic Portsmouth location.
      1290 Woodbury Ave, Portsmouth, NH 03801
      View Details
    • $950,000
      1,782 SF

      Portsmouth Commercial Property on Route 1

      1,782 SF commercial building on 0.33 acres in Portsmouth, NH.
      930 Rte 1 Byp, Portsmouth, NH 03801
      View Details
    • $149,000

      Turnkey Restaurant Opportunity in Portsmouth

      Turnkey restaurant with dining rooms, bars, patio in Portsmouth.
      175 High St, Portsmouth, NH 03801
      View Details
    • $215,000

      Art Studio Near Button Factory

      Two-level art studio with natural light and garage access.
      871 Islington St, Portsmouth, NH 03801
      View Details
    • $3,300,000
      0.25 Acres

      Historic Portsmouth Office Building For Sale

      Landmark Portsmouth building, ideal for professional offices or business.
      144 Washington St, Portsmouth, NH 03801
      View Details
    • $1,000,000
      0.41 Acres

      Waterfront Lot Near Downtown Portsmouth

      Waterfront mixed-use property near downtown Portsmouth, offering versatile development opportunities.
      98 Cornwall St, Portsmouth, NH 03801
      View Details
    • $250,000

      Portsmouth Commercial Office Condominium

      Commercial office condominium in Portsmouth, renovated in 2024.
      118 Maplewood Ave, Portsmouth, NH 03801
      View Details
    • $425,000

      Downtown Portsmouth Office Suites Available

      Recently renovated office suites in a vibrant, walkable downtown location.
      10 Vaughan St, Portsmouth, NH 03801
      View Details
    • $300,000

      Downtown Portsmouth Office Suites

      Recently renovated office suites in a prime downtown location.
      10 Vaughan St, Portsmouth, NH 03801
      View Details
    • $500,000

      Downtown Portsmouth Office Suites Available

      Recently renovated office suites in a prime downtown location.
      10 Vaughan St, Portsmouth, NH 03801
      View Details
    • $1,000,000
      0.16 Acres

      Waterfront Lot Near Downtown Portsmouth

      Waterfront lot near downtown Portsmouth with redevelopment potential.
      94 Langdon St, Portsmouth, NH 03801
      View Details
    • New
      $1,190,000
      1,944 SF

      Portsmouth Multi-Family Investment Opportunity

      Two-unit property in desirable location with investment or single-family potential.
      292 Wibird St, Portsmouth, NH 03801
      View Details

    FAQs

    What type of property is this?
    Office units - 4,600 sqft Portsmouth commercial condo with residential conversion potential.
    Where is this office units located?
    The property is located at 20 Ladd St, Unit K Portsmouth, NH.
    What is the asking price?
    The asking price for this property is $2,300,000.
    What are key features of this property?
    This property features: - Premier downtown Portsmouth location, steps from restaurants, shops, and the waterfront.; - Rare potential for residential conversion.; - **Meticulously renovated 4,600± sq.ft. space blending historic character with modern amenities.**
    (603) 610-8500
    Request Owner's contact information
    20 Ladd St, Unit K Portsmouth, NH 03801
    Message sent successfully
    Error
    If you are the owner or broker of this property and would like to edit or remove this listing please send a message to web site administrator.
    20 Ladd St, Unit K
    Portsmouth, NH 03801
    Message sent successfully
    Error
    Email to Your Friends
    Link copied to clipboard
    Separate multiple addresses with a comma
    Message sent successfully
    Error

    Realmo Value Estimations

    Realmo estimates a property’s market value using a proprietary methodology that incorporates public data and user-submitted information. This cumulative value is generated by integrating a variety of conventional and innovative methods. 

    Disclaimer

    These figures are not official appraisals and should not be used as a substitute for a valuation performed by a licensed appraiser.
    Actual market value may differ due to factors not captured in the data. Estimates are offered for informational purposes only, and users should conduct independent research before making financial or investment decisions.
    By using this feature, you acknowledge that Realmo is not responsible for actions taken based on these estimates.

    AI approach

    Realmo AI Method estimates property value using machine learning models trained on millions of comparable listings, transactions, and market signals. It analyzes property features, location intelligence data, and current market dynamics to predict the most probable market value in real time.

    Realmo CapRate Calculation

    Realmo calculates the Capitalization Rate (Cap Rate) to help estimate a property's potential return on investment. The Cap Rate is a fundamental metric in commercial real estate that measures the relationship between a property's net operating income and its market value.

    How We Calculate Cap Rate

    Cap Rate Formula:
    Cap Rate (%) = (Net Operating Income / Property Value) × 100

    Net Operating Income (NOI) Formula:
    NOI = Area × Lease Rate × (1 - Vacancy Rate) × (1 - Operating Expense Ratio)

    Components

    Net Operating Income (NOI) represents the annual income a property generates after operating expenses:

    • Area: Building square footage from property records
    • Lease Rate: Annual $/sqft based on market data for the property type and geographic location
    • Vacancy Rate: Percentage of unoccupied space based on market data for the property type and location
    • Operating Expense Ratio: Operating costs as a percentage of income, varies by property type

    Property Value is derived from:

    • Recent sale price (if available)
    • Statistical models using comparable sales
    • AI-powered valuation estimates

    Example Calculation

    For a 100,000 sqft Office Building:

    • Lease Rate: $25.00/sqft/year (market data for Office in this area)
    • Vacancy Rate: 8% (market data for Office in this area)
    • Operating Expense Ratio: 35% (typical for Office properties)
    • Property Value: $15,000,000

    Step 1: Calculate NOI

    NOI = 100,000 × $25.00 × (1 - 0.08) × (1 - 0.35)
    NOI = 100,000 × $25.00 × 0.92 × 0.65
    NOI = $1,495,000/year

    Step 2: Calculate Cap Rate

    Cap Rate = ($1,495,000 / $15,000,000) × 100
    Cap Rate = 9.97%

    Property Type Considerations

    Net Operating Income calculations vary by property type due to different operating expense ratios:

    • Office: Higher expenses (30-40%) for HVAC, utilities, maintenance
    • Retail: Moderate expenses (25-35%) for common area maintenance
    • Industrial/Warehouse: Lower expenses (15-25%) for minimal tenant services
    • Multifamily: Moderate expenses (35-45%) including property management
    • Self-Storage: Lower expenses (25-35%) due to minimal maintenance

    Market lease rates and vacancy rates are specific to each property type and geographic location, reflecting local market conditions.

    Disclaimer

    These calculations are estimates for informational purposes only and should not be used as a substitute for professional financial analysis or appraisal.

    • Cap Rate calculations depend on market data that may change over time
    • Actual operating expenses, lease rates, and vacancy rates may differ from market averages
    • Individual property conditions, lease terms, and tenant quality significantly impact actual NOI
    • Property value estimates are approximations and not official appraisals
    • Cap rates vary widely by market, property condition, and investment risk profile

    Professional Guidance Recommended: Before making any investment or financial decisions, consult with licensed appraisers, commercial real estate brokers, and financial advisors who can evaluate your specific property and circumstances.
    By using this feature, you acknowledge that Realmo is not responsible for investment decisions or actions taken based on these estimates.

    Cap approach

    Capitalization Method calculates value based on estimated net operating income (NOI) and applying a market-based capitalization rate (cap rate), we estimate what a typical investor might be willing to pay for it.

    Comparable approach

    Comparable estimate is based on recent sales of similar nearby properties, adjusted for factors like size, condition, and location.

    Relative

    Relative property class coefficient uses factors that account for typical price differences between various asset types (e.g., retail vs. industrial) to provide a more accurate market-aligned estimate.

    Geo

    Comparable Sales Method, enhanced by Geo coefficients — location-based adjustment factors that reflect differences in price levels across neighborhoods, cities, or regions ensuring a more accurate, market-sensitive valuation.

    Stat Estimate

    This method estimates value based on actual market adjusted recent (~5 years) sales of comparable properties around by location and property type.

    • Ranges - area data calculated by industry standard IQR Outlier Removal Method
    • Range-from: 75% of all similar sales ($/sqft) are above this value
    • Range-to: 75% of all similar sales ($/sqft) are below this value
    AI Estimate

    This method estimates value based on AI market estimation of comparable properties around by location and property type.

    • Ranges - area data calculated by industry standard IQR Outlier Removal Method
    • Range-from: 75% of all estimations ($/sqft) are above this value
    • Range-to: 75% of all estimations ($/sqft) are below this value
    Alternative use

    Estimate considers the property’s potential value if used for a different purpose-based on zoning, demand, and market feasibility.

    More about this property
    20 Ladd St, Unit K Portsmouth, NH 03801
    Thanks! Your message was sent.
    Error! Your message wasn't sent.
    Please enter your name
    Please enter email
    Please enter the email in the correct format
    Please enter phone
    Please enter the number in the correct format
    Please enter message
    Thank You

    You are Unsubscribed From Notifications

    We can help!
    Listing Contact
    Meaghan Defreze
    (603) 610-8500 (603) 770-5138
    Learn more
    Google sign-in failed. Please try again or use another login method.
    Sign Up Successful!
    You now have access to more from Realmo!